All SSRI antidepressants cause weight gain. Usually 20 to 40 pounds with long term use. I wish more doctors would tell the truth. In studies comparing many supplements to SSRIs, the SSRIs come up short. Too many side effects for too little mental health improvement.

Don't ever go off long term SSRIs without doctor's help however. I'm not cruel enough to go into a detailed description of withdrawal. Taper off very, very gradually if you have taken them for more than four months.